<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <!-- 放置标题图片 @是设置的别名-->
      <div class="title-container">
        <h3 class="title">
          <img src="@/assets/common/login-logo.png" alt="">
        </h3>
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="mobile"
          v-model="loginForm.mobile"
          placeholder="请输入手机号"
          name="mobile"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <!--
  组件默认是不支持原生事件的注册  原生标签是支持的!!!
  1.将来你希望直接直接给组件注册原生,最暴力,native修饰符
    原理就是将注册给组件的点击事件  落到 组件的根元素

  2. 组件可以通过触发自定义事件的方式 能改注册原生事件 (组件内部做了支持)
  (利用子传父的语法)

  总结:用组件时,如果你想注册原生事件,一旦注册上了,没反应,=>组件内部并没有支持

  反手直接 .native
 -->
      <el-button
        class="loginBtn"
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click="handleLogin"
      >登录</el-button>

      <div class="tips">
        <span style="margin-right:20px;">账号: 13800000002</span>
        <span> 密码: 123456</span>
      </div>

    </el-form>
  </div>
</template>

<script>
// 按需导入
import { validMobile } from '@/utils/validate'
import { mapActions } from 'vuex'
// import { reqLogin } from '@/api/user'
// 默认导入
// import http from '@/utils/request'
// 如果有另外一个页面也需要发送请求，又需要默认导入 => 麻烦 => 优化？

export default {
  name: 'Login',
  data() {
    // 整个项目难道只有这个地方进行手机号的校验
    // 封装抽离校验的核心逻辑
    const validateMobile = (rule, value, callback) => {
      if (validMobile(value)) {
        callback()
      } else {
        callback(new Error('手机号格式错误'))
      }
    }

    return {
      loginForm: {
        mobile: '13800000002',
        password: '123456'
      },
      loginRules: {
        mobile: [
          // { required: true, trigger: 'blur', validator: validateUsername }
          { required: true, message: '手机号不能为空哟', trigger: ['blur', 'change'] },
          { validator: validateMobile, trigger: ['blur', 'change'] }
        ],
        password: [
          // { required: true, trigger: 'blur', validator: validatePassword }
          { required: true, message: '密码不能为空哟', trigger: ['blur', 'change'] },
          { min: 6, max: 12, message: '密码只能是6-12位', trigger: ['blur', 'change'] }
        ]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    ...mapActions('user', ['login']),
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      // console.log('进行表单验证')
      this.$refs.loginForm.validate((falg) => {
        // if (falg) {
        //   console.log('发送请求')
        // }
        if (!falg) return
        console.log('发送请求')
        this.loading = true
        // 临时测试登录请求， 先拼好基础地址
        this.login(this.loginForm).then(() => {
          this.$message({
            message: '恭喜登录成功',
            type: 'success'
          })
          this.$router.push('/')
          // this.loading = false
        }).catch(() => {
          // this.$message({
          //   message: '登录失败',
          //   type: 'error'
          // })

        }).finally(() => {
          this.loading = false
        })
        // 跳转路由this.$router
        // 获取当前路由信息 this.$router
        // this.$router.push({
        //   path:'/'
        // })
        // 希望在登录成功以后,跳转首页???? 不能
        // this.$router.push('/')
        // this.loading = false
        // 希望在登陆(异步)成功之后,跳转首页 => 封装promise
        // 希望等一个异步操作结束之后,再做某件事????? 回调/promise
        // this.$store.dispatch('user/login', this.loginForm)
        // reqLogin(this.loginForm).then(res => {
        //   // console.log(res, 7878)
        //   // token存储到token(获取方便/响应)
        //   this.$store.commit('user/setToken', res.data.data)
        // })
        // this.$http({
        //   method: 'post',
        //   url: 'http://localhost:8888/api/sys/login',
        //   data: this.loginForm
        // }).then(res => {
        //   console.log(res)
        // })
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#407ffe;
$cursor: #000;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  // 在样式中 是不认识@; 如何让它人数 ~@ =>src
   background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.9); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
  }
   .el-form-item__error {
    color: #fff;
    font-size: 14px;
 }
 .loginBtn {
  background: #407ffe;
  height: 64px;
  line-height: 32px;
  font-size: 24px;
}
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
